Combination-lock



J. J. DEAL.

- GOMBINATION LOCK.

Patented 38:11.14, 1896.

UNITED STATES PATENT EETCE.

.IOSIAII J. DEAL, OF CANTON, OI-IIO.

yCDMBlNATlON-LOCK.

SPECIIECATION forming part of Letters Patent No. 552,896, dated January14, 1896.

Application filed June Z4, 1895. Serial No. '353,7'75. (No model.)

To @ZZ whom it may concern,.-

Be it known that I, .IOSIAH J. DEAL, a citizen ot the United States, anda resident of Canton, county of Stark', State of Ohio, have invented anew and useful Improvement in Combination-Locks, of which the followingis a full, clear, and exact description, reference being had to theaccompanying drawings, making part of this specification.

My invention relatesY to improvements in combination-locks; and itconsists of certain features'of construction and combination of parts,as will be hereinafter described and claimed.

Figure l of the drawings is a transverse or vertical section through thecenter of the lock. Fig. 2 is a longitudinal section through the center.Fig. 3 is a plan showing the inside face of the lock-plate, the bolt,the end, a section of the knob, and keys. Fig. ai is a section of theknob. Fig. 5 is a plan of the wardplatc. Figs. 6 and 7 show a side viewof the blank keys. Figs. 8 and 9 show a side view of the locking-keys.

A denotes the lock-plate, having a flan gedup front edge a, on the innerface of which are provided lugs l), at the opposite side, a stud c tosupport the ward-plate B, and studs d, that serve to support the prongse of the bolt O. In Fig. 3 the bit portions of the keys D and E areshown resting against the turned-in end portionf of prongs e. By rockingthe knob E the bolt will be moved in, and when the knob is released thebolt will be thrown out by the spring g.

The knob E is formed substantially as shown, having` twoA diam eters,having a knob at one end and a shank portion at the other. Grooves D areformed in the knob and shank diani'etrically opposite, as shown in Fig.4E, adapted to receive the back of the keys and in which the keys aresupported and niay be moved longitudinally, as will be hereinaftermentioned. In Fig. l the keys F and G are shown in opposite grooves, andin Fig. 2 the keys Il and J are shown in grooves longitudinallyopposite, the last-mentioned keys having slots and j in the bit toreceive the wardplate B to allow the keys to be turned in the lock. Theblank keys F and Ghave no wardslots, as shown, in keys l-I and J, and inoperation the bit of said keys is passed into the lock between theward-plate B and the lockplate A. In the ward-plate B are provided slots7o to receive the bit portion of the key. At the outer end portion ofthe key are provided a slot Z and a perforation fm.. A piece ofspring-wire, as n, is passed through the perforation and bent togetherin the slot, thus forming a spring, the sides of which will rest againstthe sides of the grooves t' in the knob to hold the key in desiredadjustment in the look.

To assemble the parts the bolt C is placed on the locleplate, as shown,the prongs resting on the studs d, the spring g adjusted, as shown, withone end resting against the stud d, the other against the bolt. Theward-plate is placed over the bolt, the i'ront edge under the lugs t,the other side secured to the stud c. The sides of the ward-plate arebent at right angles, as shown in Fig. l, thus providing a guide for thepronged portion of the bolt. The doorL, being niortised to receive thelockplate A, is secured to the inside face, as shown, the number-plateor escutcheon K is placed on the outside, and the shank portion of theknob is passed through the last-mentioned plate and loosely secured tothe lock-plate A by the screw p,which forms a pivotal connection betweenthe plate and the. knob. The keys are passed into the slots b in theknob and through the slot q in the plate K and into the lock, andsecured in the grooves by the end plate s.

The lock represented in the drawings is set on iignres l 2 3, that isthe combination. The keys are designated by letters. Keys F and G arepushed into the lock, as shown in Fig. l, the bits of the key resting onthe portion fof the bolt, as shown in'Fig. 3; key .I pushed part way inthe loc-k, the rib portion t, th at corresponds with the rib u on theouter end of the knob, to stop midway between the knobribs u and r, asshown in Fig. 2. Key H, that corresponds with figure l on the dial,remains out, as shown in Fig. 2.' This movement of the keys brings theslots in the keys H and .I into position to pass onto the ward-plate Bto allow the knob to be rotated. The keys F and G, resting against theend of the bolt, will draw the b olt back, and when the knob is releasedthe spring will throw the bolt out.

To change the combination, remove the cap S, draw ont the keys and placethem differ- ICO ently in the grooves, making such transposislots toreceive the Ward plate, and at their tion as may be desired. outer end aslot Z and a spring n to hold the Having thus fully described the natureand keys in desired adjustment in the grooves. object of my invention,what I Claim is substantially as set fort-h.

5 The Combination in a look, of the look plate In testimony whereof Ihave hereunto ser i g A, Ward plate B and bolt C, of the knob E, my handthis 29th day of May, A. D. 1895.

having therein, a plurality of longitudinal JOSIAH J. DEAL. grooves,keys adapted to move longitudinally XVitneSSes: in said grooves, havingat their inner ends a \V. K. MILLER,

1o bit portion to engage and throw the bolt, and CHAS. R. MILLER.

